Cannot change Financial Sanctions status of a particular supplier from Review to Blocked

Hi,

I have a scenario where the user is trying to clear one particular vendor from the financial sanction validation log page. When she goes to the Supplier Identifying Information tab and try to change the status of the Financials Sanctions Status to Blocked from Review, it doesn't allow her to save the page in Production. However, she can do that for the same supplier in one of the test environments. In production, the user can change the statuses of other suppliers. The issue is only with this supplier. Any [pointer regarding this would be helpful.

Thanks,

Debolina